Cyrus h



www-

dimmi tant Patent @time CYRUS H. HARDY, OF BATH, MAINE.

Lenen 15mm No. 89,218, dated Apel 2o, 1869.

IMPROVED KNIFE-CLEANER The Schedule referred to in these Letters Patentand making part of the same.

To all whom it may concern:

Be it known that I, GYRUs H. HARDY, of Bath, in the county of Sagadahoc,and State of Maine, have invented certain new and useful Improvements inKnife-Cleaners, of which the following is a full, clear,

and exact description, reference being had to the acand consists inpivoting the movable jaw to a lever,

so that the rubbing-surfaces will always conform to each other when wornaway at either end, and also conform to the shape of the knife beingcleaned, whether it is at and of uniform thickness, or wedgeshaped incross-section, thereby enabling the machine to perform its work in athorough and effectual manner; and

My invention also consists in certain details, which will beparticularly described hereafter.

'lo enable others skilled in the art to understand and use my invention,I will proceed to describe the manner in which I have carried it out.

In the said drawings- A represents the hase of the machine, which iscomposed of two parallel bars, a, and a cross-piece, l), from whichdescends a bent arm, B, which serves, with a thumb-screw, c, to ela-mpthe apparatus to a table, or other suitable suppolt.

C are curved arn1s,\vhich rise from opposite sides of the cross-piece b,and serve to support the upper, or stationary jaw D,'in which is fitteda pieceof cork, E, a similar piece of cork, Gr, being` secured to themovable jaw H, which is pivoted to the extremity of a handle, or lever,I, pivoted at l to the base A.

The pieces of cork, E G, thus form rubbers, between which the knife tohe cleaned, or polished, is reciproeatedquiekly, a suitable grittysubstance being employed in the operation, and the lever I beingdepressed bythe hand so as to bring the surfaces of the rubbers intoclose contact with the sides ofthe knife, the back of which restsagainst the projections c, which rise above the upper edge of the-corkG, and thus form a guard to steady the knife as it is moved back andforth.

By thus pivoting the movable jaw H to a lever, I, which is pivoted tothe frame-work, instead of securing it rigidly to a level', asheretofore, the rubbing-surfaces will be always in contactwith the sidesofthe knife, while being cleaned, whether it is hat and of uniformthickness, or wedge-shaped in cross-section, thus enabling the machineto perform its work in a thorough and effective manner; and it will alsobe seen that the movement of the lower jaw will also compensate for anywearing away of the surfaces of the rubbers at either end, and causethem to fit each other at all times, as required, while, by pivoting thehandle I to the frame-work, as above described, a leverage is obtained,so that a slight pressure only is 'required in operating the machine.

fare arms, which project from the movable jaw H, and lit between thecurved arms C, which thus serve as guides to steady the jaw Il, and keepit in place while the knife is being cleaned.

The jaws I) II are each provided with lips, or flanges, g, which serveto hold the corks, or rubbers Ill G firmly in place, but yet allow oftheir being easily removed and replaced by others when worn out, andthese rubbers E G, instead of being of cork, may, if desired, be formedof some other suitable material.

Claim..

What I claim as my invention, and desire to secure by Letters Patent,is-

The movable jaw G, pivoted on the short arm of the lever I, andfurnished Wit-h lugs, f, to guide it in the grooves of frame0,substantia1ly as set forth.

OYRUS H. HARDY.

Witnesses:

J. L. DOUGLAS, Z. H. BLALR.

